Results 121 to 130 of about 7,929 (304)

Interfacial Proton‐Relay Microenvironment Enables Self‐Driven Singlet Oxygen Generation under Neutral Conditions

open access: yesAdvanced Science, EarlyView.
An interfacial proton‐relay microenvironment at MoS2‐CuCl heterostructures enables selective O2 activation to 1O2 under neutral conditions. Electron‐deficient sulfur sites mediate proton transfer to Cu‐bound O2, accelerating *OOH hydrogenation while suppressing O─O bond cleavage, achieving stable, efficient pollutant removal.
Qiaoyu Gao   +9 more
wiley   +1 more source

COHERENT ANTI-STOKES RAMAN SCATTERING VERSUS THE SPONTANEOUS RAMAN EFFECT

open access: yes, 1976
Author Institution: Department of Chemistry, University of North CarolinaSpontaneous Raman scattering is a two photon process in which perhaps one photon in roughly $10^{7}$ is scattered to low frequency, i.e., into the Stokes region.
Johnson, Charles S., Jr., DeZwaan, Jack
core  

Interfacial Water Coordination on Ruthenium Oxide Nanoparticles Confined Within Covalent Organic Framework and Its Effect on Electrochemical Nitrate Reduction

open access: yesAdvanced Science, EarlyView.
We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li   +6 more
wiley   +1 more source

Generation of Raman lasers from nitrogen molecular ions driven by ultraintense laser fields

open access: yesNew Journal of Physics, 2018
Atmospheric lasing has aroused much interest in the past few years. The ‘air–laser’ opens promising potential for remote chemical sensing of trace gases with high sensitivity and specificity.
Jinping Yao   +5 more
doaj   +1 more source

Aging and Electrical Stability of DNTT Honey‐Gated OFETs

open access: yesAdvanced Electronic Materials, EarlyView.
DNTT honey‐gated organic transistors were fabricated and evaluated to assess short‐ and long‐term stability under electrical stress and aging. Short‐term transfer measurements (five days, 40 sweeps/day) showed minimal parameter shift, while extended measurements revealed gradual degradation over weeks.
Douglas H. Vieira   +8 more
wiley   +1 more source

A tunable time-resolved spontaneous Raman spectroscopy setup for probing ultrafast collective excitation and quasiparticle dynamics in quantum materials

open access: yesStructural Dynamics, 2018
We present a flexible and efficient ultrafast time-resolved spontaneous Raman spectroscopy setup to study collective excitation and quasi-particle dynamics in quantum materials. The setup has a broad energy tuning range extending from the visible to near
R. B. Versteeg   +7 more
doaj   +1 more source

Light source for coherent raman scattering based on spontaneous four-wave mixing in silicon nitride waveguides

open access: yes, 2020
We present a light source for coherent anti-Stokes Raman scattering, with the potential to be set up as an all-integrated device, based on spontaneous FWM in silicon nitride waveguides with only a single ultrafast pump source at 1030 nm wavelength.
Boller, Klaus J.   +4 more
core   +1 more source

Orbital and Electrical Dual Function of Polymer Intercalant for Promoting NH4+ Storage in Vanadium Oxide Anode

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
The impact of polyaniline insertion on the atomic orbitals and electronic structure of vanadium oxide anode is systematically investigated for the first time. The electrode exhibits an outstanding capacity and unprecedent long‐term cycling life, owing to the electron transition to the V 3dxy state and the enhanced diffusion kinetics.
Yue Zhang   +6 more
wiley   +1 more source

Fabrication of Composite Cathode for All‐Solid‐State Sodium Batteries

open access: yesAdvanced Energy Materials, EarlyView.
The design of composite cathodes for all‐solid‐state sodium batteries must address three critical challenges—interfacial side reactions, interfacial delamination, and highly tortuous transport pathways. This work outlines structural and interfacial strategies to optimize ion transport and mechanical stability, enabling durable, and high‐performance ...
Gaoming Sun   +6 more
wiley   +1 more source

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